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An imp is a mythological being similar to a fairy or demon, frequently described in folklore and superstition. The word may perhaps derive from the term ympe, used to denote a young grafted tree.

Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition:

Imp

imp, n. a little devil or wicked spirit: a son, offspring, a pert child.—v.t. (falconry) to mend a broken or defective wing by inserting a feather: to qualify for flight.—adj.Imp′ish, like an imp: fiendish. [A.S. impe—Low L. impotus, a graft—Gr. emphytos, engrafted.]